At 300 K, the thermal expansion coefficient and isothermal compressibility of liquid water are 2 × 10⁻⁴ K⁻¹ and 5 × 10⁻⁵ bar⁻¹, respectively ((∂ U)/(∂ V))T (in k bar) for water at 320 K and 1 bar will be.

(b) 1.2. Explanation: Tα/κ − P ≈ 1.3 kbar — closest 1.2 (b).

Q75 · CSIR-NET Chemistry, June 2018

Paper: CSIR-NET June 2018 · Subject: Physical Chemistry · Chapter: Thermodynamics · Topic: Thermodynamics – General · Marks: 2 · Difficulty: Medium

At 300 K, the thermal expansion coefficient and isothermal compressibility of liquid water are $2 \times 10^{-4} \mathrm{K}^{-1}$ and $5 \times 10^{-5} \mathrm{bar}^{-1}$, respectively $\left(\frac{\partial \mathrm{U}}{\partial \mathrm{V}}\right)_{\mathrm{T}}$ (in k bar) for water at 320 K and 1 bar will be.

(a)2.4

(b)1.2

(c)0.6

(d)12.0

Answer

Answer: B ✓ checked by 4AB · confidence high

Explanation

Tα/κ − P ≈ 1.3 kbar — closest 1.2 (b).

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